type WarnOnceType = 'log' | 'warn' | 'error';
export type WarnOnceHandler = (message: string, type?: WarnOnceType) => void;
export declare function warnOnce(zone: string): WarnOnceHandler;
export declare const COMMON_WARNINGS: {
    a11y: {
        'button-name': string;
        'link-name': string;
        'image-alt': string;
    };
};
export {};
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